Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-47242

Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-77 Neutralización incorrecta de elementos especiales usados en un comando (Inyección de comando)
Fecha de publicación:
22/06/2026
Última modificación:
23/06/2026

Descripción

*** Pendiente de traducción *** Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to 0.6.5 and 0.5.15, when Net::IMAP#id is called with a hash argument, although the ID field value strings are correctly quoted (escaping quoted specials), they were not validated to prohibit CRLF sequences. While Net::IMAP#enable does process its arguments for aliases, it does not validate them as valid atoms (or as a list of valid atoms). The #to_s value is sent verbatim. Arguments to either command could be used by an attacker to inject arbitrary IMAP commands. This vulnerability is fixed in 0.6.5 and 0.5.15.

Referencias a soluciones, herramientas e información